A118526 Start with 1 and repeatedly reverse the digits and add 7 to get the next term.

1, 8, 15, 58, 92, 36, 70, 14, 48, 91, 26, 69, 103, 308, 810, 25, 59, 102, 208, 809, 915, 526, 632, 243, 349, 950, 66, 73, 44, 51, 22, 29, 99, 106, 608, 813, 325, 530, 42, 31, 20, 9, 16, 68, 93, 46, 71, 24, 49, 101, 108, 808, 815, 525, 532, 242, 249, 949, 956, 666, 673, 383, 390, 100, 8

Offset: 1

Author

N. J. A. Sloane, May 06 2006

Keywords

• nonn
• base

Links

• N. J. A. Sloane and others, Sequences of RADD type, OEIS wiki.
• Index entries for linear recurrences with constant coefficients, signature (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1).

Crossrefs

Cf. A117828, A117816, A117817.

Programs

Maple

a:= proc(n) option remember; `if`(n=1, 1, 7 +(s-> parse(
      cat(seq(s[-i], i=1..length(s)))))(cat("", a(n-1))))
    end:
seq(a(n), n=1..65);  # Alois P. Heinz, Nov 07 2019

Formula

After 1 step enters a cycle of length 63.